JPS6211761A - Film for heat sealing - Google Patents
Film for heat sealingInfo
- Publication number
- JPS6211761A JPS6211761A JP16667186A JP16667186A JPS6211761A JP S6211761 A JPS6211761 A JP S6211761A JP 16667186 A JP16667186 A JP 16667186A JP 16667186 A JP16667186 A JP 16667186A JP S6211761 A JPS6211761 A JP S6211761A
- Authority
- JP
- Japan
- Prior art keywords
- film
- styrene
- acrylic ester
- sealing
- ethylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 17
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229920001577 copolymer Polymers 0.000 claims abstract description 4
- 239000011342 resin composition Substances 0.000 claims abstract description 4
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 claims description 6
- 229920001400 block copolymer Polymers 0.000 claims description 3
- 229920006226 ethylene-acrylic acid Polymers 0.000 claims description 2
- 239000003566 sealing material Substances 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 8
- 229920003048 styrene butadiene rubber Polymers 0.000 abstract description 6
- -1 acrylic ester Chemical class 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 3
- 238000002156 mixing Methods 0.000 abstract 1
- 229920005989 resin Polymers 0.000 description 6
- 239000011347 resin Substances 0.000 description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 229920001890 Novodur Polymers 0.000 description 1
- 239000002174 Styrene-butadiene Substances 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 235000013527 bean curd Nutrition 0.000 description 1
- MTAZNLWOLGHBHU-UHFFFAOYSA-N butadiene-styrene rubber Chemical compound C=CC=C.C=CC1=CC=CC=C1 MTAZNLWOLGHBHU-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 235000013365 dairy product Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 239000005042 ethylene-ethyl acrylate Substances 0.000 description 1
- 229920000578 graft copolymer Polymers 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 235000011962 puddings Nutrition 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
Landscapes
- Manufacture Of Macromolecular Shaped Articles (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明はヒートシール用のフィルムに関し、特に、スチ
レン系樹脂製の容器をヒートシールする際にシール材と
して用いられるフィルムに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a film for heat sealing, and particularly to a film used as a sealing material when heat sealing containers made of styrene resin.
（従来の技術）
スチレン系樹脂で造られた容器（以下スチレン容器と称
する）はシールパックとして、近年乳製品、菓子、豆腐
等の食品包装用に広く利用されてきている。そして、そ
れら容器のシール用材としては、専らホットメルト接着
剤又は溶剤監接着剤をコーティングしたアルミニウム箔
が使用されているが、シール材の剥離後に容器側に残る
接着剤が食品衛生上の点から問題となっており、アルミ
ニウム箔に代るシール材が望まれている。(Prior Art) Containers made of styrene resin (hereinafter referred to as styrene containers) have been widely used as seal packs in recent years for packaging foods such as dairy products, confectionery, and tofu. Aluminum foil coated with hot-melt adhesive or solvent-controlled adhesive is used as the sealing material for these containers, but from a food hygiene point of view, the adhesive remaining on the container side after the sealing material is peeled off is used. This has become a problem, and a sealing material that can replace aluminum foil is desired.
（発明が解決しようとする問題点）
この点に関し、本出願人は既に、スチレン−ブタジエン
ブロック共重合体を含むシール材を用いてスチレン容器
をヒートシールする方法について提案した（特公昭５２
−４６１５０号公報）。この方法に依る時は、従来易開
封性を有するシール温度条件中が極めて狭いとされてい
たスチレン容器のシール温度条件中を広くすることが可
能となったが、この場合でも実用的には未だ充分満足す
るものとはいえない。(Problems to be Solved by the Invention) Regarding this point, the present applicant has already proposed a method of heat sealing a styrene container using a sealing material containing a styrene-butadiene block copolymer (Japanese Patent Publication No. 52
-46150). When using this method, it has become possible to widen the sealing temperature range for styrene containers, which was previously thought to be extremely narrow, but even in this case, it is still not practical. It cannot be said that it is completely satisfactory.
本発明者等は、更にシール温度条件中を広く採ることの
出来るシール材に就き研究を行い実用的にも充分満足し
得るシール材として以下に説明するフィルムを見出し、
本発明を完成するに至った。The present inventors further conducted research into a sealing material that can be applied over a wide range of sealing temperature conditions, and found the film described below as a sealing material that is fully satisfactory from a practical standpoint.
The present invention has now been completed.
（問題点を解決するための手段）
すなわち本発明は、エチレン−アクリル酸エスチル共重
合体（Ａ）５〜５０ ＷＺ％及びスチレン含量６０〜９
５ＷＺ％のスチレン−ブタジエンブロック共重合体（Ｂ
） ９５〜５０ ｗｔ％の樹脂組成物からなるヒートシ
ール用フィルムである。(Means for Solving the Problems) That is, the present invention provides an ethylene-ethyl acrylate copolymer (A) with a WZ% of 5 to 50% and a styrene content of 60 to 9%.
5WZ% styrene-butadiene block copolymer (B
) A heat-sealing film made of a resin composition of 95 to 50 wt%.
次に本発明のエチレン−アクリル酸エステル共重合体（
Ａ）（以下（Ａ）成分と略す）とスチレン含量６０〜９
５ ＷＺ ％のスチレン−ブタジエンブロック共重合体
（Ｂ）（以下（Ｂ）成分という）から成るフィルムにあ
っては、（Ａ）成分は５〜５ Ｑｗｚ％の範囲で存在す
る。５ｗｚ％未満では易開封性のシール温度条件中が狭
くなり、５Ｑｗｔ、％を越えると粘着性が増大し、ブロ
ッキングを起すと同時に、シール強度自体が低下する。Next, the ethylene-acrylic acid ester copolymer of the present invention (
A) (hereinafter abbreviated as component (A)) and styrene content 60 to 9
In a film composed of 5 WZ% styrene-butadiene block copolymer (B) (hereinafter referred to as component (B)), component (A) is present in the range of 5 to 5 Qwz%. If it is less than 5 wz%, the range of seal temperature conditions for easy opening becomes narrow, and if it exceeds 5 Qwt, tackiness increases, causing blocking, and at the same time, the seal strength itself decreases.
使用するアクリル酸エステルとしては、エチルアクリレ
ートが代衣的なものとして挙げられるが、その他のエス
テルも同様に使用することができる。（Ａ）成分中のア
クリル酸エステルの含有量は５〜３５ｗｚ％の範囲のも
のがフィルム強度の点で好適である。As the acrylic ester to be used, ethyl acrylate is mentioned as a substitute, but other esters can be used as well. The content of acrylic ester in component (A) is preferably in the range of 5 to 35 wz% from the viewpoint of film strength.
この樹脂組成物から成るヒートシール用フィルムを用い
て、スチレン容器をシールする時は、従来のシール材を
用いる場合に比べ更に易開封性を有するシール温度条件
中を広く採ることが可能となる。When sealing a styrene container using a heat-sealing film made of this resin composition, it is possible to use a wider range of sealing temperature conditions that provide easier opening than when using conventional sealing materials.
ヒートシールの方法としては通常のヒートシーラーの形
状、方法で良く、更にインパルスシーラー等による方法
が用いられる。As for the heat sealing method, a conventional heat sealer shape and method may be used, and a method using an impulse sealer or the like may be used.
ヒートシールの対象となるスチレン容器の材質としては
一般用ポリステレン樹脂、ゴム変性ポリスチレン樹脂、
Ａｓ樹脂、ＡＢＳ樹脂等のスチレン系樹脂が使用される
。Materials for styrene containers that can be heat-sealed include general-purpose polysterene resin, rubber-modified polystyrene resin,
Styrenic resins such as As resin and ABS resin are used.
本発明に係るフィルムは、又他のフィルム或はは、アル
ミニウム箔と積層して、或いはアルミニウムを蒸着して
使用することも可能である。The film according to the present invention can also be used by laminating it with other films or aluminum foil, or by vapor-depositing aluminum.
（実施例） 以下史に本発明を、実施例を以って詳説する。(Example) The present invention will be explained in detail below using examples.
実施例
衣に示す組成範囲で各成分全混合し、インフレーション
法により１００μｍ厚のフィルムを成形し、そのフィル
ムのシール性、製膜性及びフィルム物性を測定した。尚
シール性は、耐衝撃性スチロール樹脂製容器を用いて測
定した。各測定は、次の基準で判定された。All the components were mixed within the composition range shown in the example coating, and a film with a thickness of 100 μm was formed by the inflation method, and the sealing properties, film formability, and film physical properties of the film were measured. The sealability was measured using a container made of impact-resistant styrene resin. Each measurement was judged based on the following criteria.
（１） シール性
耐衝撃性スチロール樹脂製のプリン容器に、表中の組成
物より得られたフィルムをヒートシールし、易開封性を
有するシール温度条件中が２０’Ｃ以上の場合ｆＯとし
、２０°Ｃに満たない場合を×とした。尚易開封性とは
通常の状態で密閉しており、蓋を剥離する際に、蓋又は
容器が破損しないで、手で容易に開封することのできる
性質を意味する。(1) Sealing property Heat-seal the film obtained from the composition in the table to a pudding container made of impact-resistant styrene resin, and if the sealing temperature condition with easy-opening property is 20'C or higher, it is defined as fO, A case where the temperature was less than 20°C was marked as ×. Easy-to-open property means that the container is sealed in a normal state and can be easily opened by hand without damaging the lid or the container when the lid is peeled off.
（２）製膜性
インフレーション法によりフィルム化できるものを○と
し、ブロッキング等でフィルム化できないものをＸとし
た。(2) Film forming properties Those that can be made into a film by the inflation method are marked as ○, and those that cannot be made into a film due to blocking or the like are marked as X.
（３） フィルム物性
シール容器よりシールフィルムを剥離する時、フィルム
が破損するものをＸとし、破損することなく開封される
ものを○とした。(3) Physical properties of the film When the seal film was peeled from the sealed container, a case where the film was damaged was marked as "X", and a case where the film was opened without breakage was marked as "○".
１） （Ａ）成分は、エチルアクリレート含量１８ｖ
ｙｚチのエチレン−エチルアクリレート共重合体からな
る、日本ユニカー社製、商品名「ＥＥＡコーニーマーＤ
ＰＤＪ ６１６９Ｊを用いた。1) Component (A) has an ethyl acrylate content of 18v
Made by Nippon Unicar Co., Ltd., product name "EEA Corneemer D" is made of ethylene-ethyl acrylate copolymer of yz-chi.
PDJ 6169J was used.
２） （Ｂ）成分は、スチレン３Ｑｗｔ％、ブタジェ
ン’ｌ Ｑ ｖｚ％からなるブロック共重合体を用いた
。2) As component (B), a block copolymer consisting of 3Qwt% of styrene and Qvz% of butadiene was used.
３） （Ｃ）成分は、スチレン４０ＷＺ％、ブタジェ
ン６０ｗｔ、％からなるブロック共重合体とし℃、旭化
成工業社製、商品名［タフプレンＡＪを用いた。3) Component (C) was a block copolymer consisting of 40 wt% styrene and 60 wt% butadiene, manufactured by Asahi Kasei Kogyo Co., Ltd. under the trade name [Tuffrene AJ].
４） （Ｄ）成分の耐衝撃タイプスチレン−ブタジェ
ングラフト共重合体としては、ゴム含量５．５ｗｔ、％
からなる電気化学工業社製、商品名［デンカスチロール
ＨＩ Ｅ−４Ｊを用いた。4) The impact-resistant styrene-butadiene graft copolymer of component (D) has a rubber content of 5.5 wt%.
Denki Kagaku Kogyo Co., Ltd., trade name [Dencastyrol HI E-4J] was used.
（発明の効果）
以上のとおり本発明のフィルムは、ヒートシール性にす
ぐれ、しかも再開封時の剥離も容易゛にできるため、容
器の破損をまねかない特徴を有している。(Effects of the Invention) As described above, the film of the present invention has excellent heat-sealing properties and can be easily peeled off when resealing, so that it does not cause damage to the container.
Claims (1)
ｗｔ％及びスチレン含量６０〜９５ｗｔ％のスチレン−
ブタジエンブロック共重合体（Ｂ）９５〜５０ｗｔ％の
樹脂組成物からなるヒートシール用フィルム。Ethylene-acrylic acid ester copolymer (A) 5-50
wt% and styrene content of 60-95 wt% -
A heat sealing film comprising a resin composition containing 95 to 50 wt% of butadiene block copolymer (B).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16667186A JPS6211761A (en) | 1986-07-17 | 1986-07-17 | Film for heat sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16667186A JPS6211761A (en) | 1986-07-17 | 1986-07-17 | Film for heat sealing |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3193478A Division JPS54141872A (en) | 1978-03-20 | 1978-03-20 | Heat sealing film, and sealing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6211761A true JPS6211761A (en) | 1987-01-20 |
| JPH0419261B2 JPH0419261B2 (en) | 1992-03-30 |
Family
ID=15835566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16667186A Granted JPS6211761A (en) | 1986-07-17 | 1986-07-17 | Film for heat sealing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6211761A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2682666A1 (en) * | 1991-10-18 | 1993-04-23 | Atochem | THERMOSCELLABLE AND PELABLE FILM FOR POLYSTYRENE CONTAINERS AND SEALING METHOD USING THE SAME. |
| EP0686497A3 (en) * | 1994-06-06 | 1996-03-06 | Grace W R & Co | Films having sealing characteristics and packages containing the same |
| CN110042923A (en) * | 2019-05-27 | 2019-07-23 | 江苏工程职业技术学院 | A kind of manufacture craft of double-deck air membrane structure building |
-
1986
- 1986-07-17 JP JP16667186A patent/JPS6211761A/en active Granted
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2682666A1 (en) * | 1991-10-18 | 1993-04-23 | Atochem | THERMOSCELLABLE AND PELABLE FILM FOR POLYSTYRENE CONTAINERS AND SEALING METHOD USING THE SAME. |
| EP0686497A3 (en) * | 1994-06-06 | 1996-03-06 | Grace W R & Co | Films having sealing characteristics and packages containing the same |
| EP0924062A3 (en) * | 1994-06-06 | 1999-07-07 | Cryovac, Inc. | Films having sealing characteristics and package containing same |
| US6682825B1 (en) | 1994-06-06 | 2004-01-27 | Cryovac, Inc. | Films having enhanced sealing characteristics and packages containing same |
| US7056593B2 (en) | 1994-06-06 | 2006-06-06 | Cryovac, Inc. | Films having enhanced sealing characteristics and packages containing same |
| US7611770B2 (en) | 1994-06-06 | 2009-11-03 | Cryovac, Inc. | Films having enhanced sealing characteristics and packages containing same |
| CN110042923A (en) * | 2019-05-27 | 2019-07-23 | 江苏工程职业技术学院 | A kind of manufacture craft of double-deck air membrane structure building |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0419261B2 (en) | 1992-03-30 |
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